# NTSB Accident WPR18LA041
> **ROBINSON HELICOPTER COMPANY R22** · 2017-11-30 · Truckee, CA, USA · SERS
## Event
- **NTSB number:** WPR18LA041
- **Event ID:** 20171201X80124
- **Type:** Accident
- **Date:** 2017-11-30
- **Location:** Truckee, CA, USA
- **Coordinates:** 39.319999, -120.13944
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 2
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER COMPANY
- **Model:** R22
- **Registration:** N47WH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The flight instructor’s failure to execute a power recovery from a non-stabilized autorotative descent, which resulted in a hard landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR18LA041) · AI Analytics · CC0 1.0*